In order to effectively use sectional doors, it is necessary to ensure stable tension in the cables. The cables are designed to move the working surface and create balance. Make sure that the cables do not sag, even slightly. Due to sagging, the door leaf may become deformed, as well as the guides. If sagging is detected, it is necessary to adjust the lifting sectional doors.

The following signs indicate that sectional garage doors are skewed:

1. Inability to raise/lower the gate.
2. Noticeable skew to one side.
3. Inability to fully raise the gate.
4. Inability to lower the gate completely.

Rules and techniques for adjusting overhead sectional doors

When using and repairing the structure, you must remember the following:

1. If a skewed gate is not repaired in time, the structural elements will undergo rapid wear. We'll have to replace them with others.
2. It is necessary to correctly configure the balancing for the lifting mechanism. If balancing is not performed correctly, this may result in increased load on the door. The cable may break and other structural elements may break.
3. When installing and repairing the structure, it is necessary to use only high-quality materials. The operational period of the gate depends on this.

Typically the design includes 4-6 sections connected by hinge elements. When the gate opens, the following happens:

1. The sections move upward and overlap one another.
2. The movement of the sections is carried out thanks to rotating drums and ropes wound around them. They are balanced by springs.
3. Under ceiling surface(lengthwise to the frame) guides are located. They are designed to slide panels that rest on roller elements.

Sectional doors have certain advantages:

1. Saving large quantity space, both in the garage and at the entrance to it.
2. High thermal insulation performance of sections. The thermal conductivity index is 0.5 watts per square meter.
3. High sound insulation performance of sections (up to 29 decibels).
4. The opening is well sealed.
5. Sections can be installed in garages with different sizes opening.
6. Increased fire protection.

For self-installation Such gates will require the following tools:

• pliers;
• set wrenches;
• plumber's hammer;
• rivet gun;
• electric drill with a set of drilling tools;
• measuring tape;
• level;
• gloves, glasses (to protect hands and eyes);
• perforator;
• construction knife;
• marker.

Installation algorithm:

1. Marking points for fixing horizontals and verticals.
2. Arranging and fixing vertical elements.
3. Installation load-bearing elements with a lamella located at the bottom.
4. Assembling the canvas with the section located below.
5. Adjusting the top brackets.
6. Securing control units, bolts, handles.
7. Installation of springs.
8. Supply and connection of the electric drive.
9. Installation of limiters.
10. Checking progress.

Required tools and supplies

To carry out repairs, you will need a wrench, dowels, and fasteners (bolts, nuts). It is also necessary to prepare the knob. You can prepare oil liquid to immediately lubricate the parts.

Let's move on to eliminating sagging and broken cables with our own hands

Sectional doors are divided into 2 types: split and continuous. Each of these types of structures needs to be repaired differently.

Elimination of uneven tension of left and right cables with a split shaft

Algorithm for adjusting structures with split shaft next:

1. Attaching the bottom brackets.
2. Installation of keys on sections.
3. Fixing the drum by tightening the set screw.
4. Shaft rotation. You need to turn it until the sagging is no longer noticeable. To tighten the cables, the springs must be rotated 1.5-2 turns. After tightening the springs, tighten the tension end bolts. This is necessary to securely fix the springs.

If the structure still sags, it is necessary to use the method of mutual rotation of the shafts. Due to the fact that the rotation is carried out by means of a coupling, loosen its tightening bolts. Then rotate the shaft located on the slack side. Make sure that the second shaft maintains its original position.

How to eliminate uneven tension on left and right cables with a continuous shaft

If the structure is equipped with a continuous shaft, the sequence of adjustment actions will be as follows:

1. Raising the work panel, fixing it in a raised position. This is necessary to loosen the cable that is tense.
2. Unscrewing the screw securing the cable in the drum.
3. Adjust the length to the required amount. If the cable sags, its working length must be reduced.
4. Tightening the screw that secures the cable.
5. Returning the panel to its place.
6. Checking the condition of the structure. Make sure it is no longer sagging.

If the repair was successful, nothing is sagging anymore, and no additional actions will be required. Otherwise, perform the above steps again. Do not forget that the cables must be tensioned equally.

Adjusting the spring of sectional doors

To adjust the spring, do the following:

1. Unscrew the fasteners (bolts).
2. Turn the spring one to three turns (the exact number of turns depends on the individual case).
3. Tighten the bolt fasteners.

This completes the spring adjustment.

Every good owner knows that any mechanism, even the most reliable one, can break down. And to prevent any unpleasant surprises, we recommend inspecting your garage door mechanism at least once a month for possible problems.
The most common problem with garage doors during their constant use is sagging of the cable, which is responsible for raising and lowering the garage door. This occurs due to improper installation of springs on sectional doors.
First of all, we would like to draw your attention to the fact that adjusting or replacing the cable of sectional doors is unsafe, since the torsion springs are under high tension. Therefore, perform this work with great care and use only reliable and high-quality tools.
Here are the main stages of work:

1. Check the marking strip on the spring to ensure it looks like a straight strip.


2. Secure sectional doors so that they do not rise while repair work is being carried out.


3. Insert the tension rod into the hole where the spring ends and turn.


4. Perform the same operation with another rod, but pulling out the first one.


5. Secure the spring using a key.


6. Check the operation of sectional doors.

The installation of the torsion spring mechanism of Dorhan sectional doors is carried out according to a similar principle. If you still cannot adjust the tension of the sectional door cables, then our advice is to seek the services of qualified repairmen.

How to twist a spring on a torsion gate

Setting up torsion springs for sectional garage doors on our own it happens quite simply. Even a beginner in repairs can understand how to tension a torsion spring on a gate. The main thing is to take all necessary precautions and use only high-quality tools.
If you are interested in how to tension and secure the cable on a large garage door, for example, manufactured by Dorhan, then you should understand that the entire torsion shaft is assembled in parts. So here's a basic plan on how to adjust a torsion gate mechanism:

1. Relieve the tension on the springs by lowering and fixing the structure.


2. Unscrew the screw, which will give the drum mechanism free movement.


3. You wind the cable.


4. Screw the screw into its original position.

Many inexperienced workers wonder: why do garage door cables fly out? The answer to this lies precisely in the uncoordinated operation of the entire mechanism and, in particular, the springs.

Figure 2: Basic parameters of torsion springs

Adjusting automatic gate springs

Adjustment of cables on gates with one torsion bar or several, as well as other types of gates, is carried out in the following steps:

• We raise the gate and fix it with stands. This way we can reduce the pressure on the springs of automatic gates.


• Using a screwdriver, unscrew the screw that helps secure the cable mechanism in the drum.


• Winds the cable up to optimal value tension.


• Screw the screw back in.


• We launch the gate and check the operation of the mechanism.

Figure 3: Spring Tension Steps

Adjusting spring tension on sectional doors

All renovation work on sectional doors they are carried out using the same method, but adjusting the cables of sectional doors with an electric drive still has some features. Since such structures, in addition to all components, have electrical components. Therefore, before proceeding with installation or repair, for your safety, you should disconnect the wires from the electric drive while performing work. Since accidentally touching the wires with a metal screwdriver can lead to electric shock.

Very often, after installation, sectional doors require additional adjustment. And more precisely, in adjusting the cables. Why is this necessary? The fact is that unregulated gates deteriorate much faster and become unusable. Which in turn leads to unnecessary waste of money. So, first: What does adjusting a sectional door even mean?

The main idea is to eliminate possible slack and ensure that the cables are tensioned sufficiently, but, which is also very important, not overtightened.

I would like to immediately note that sectional doors come in two types:

• with continuous;
• with split shaft.

First, let's look at the installation algorithm according to the scheme: “adjusting sectional garage doors,” if you have a gate with a split shaft installed.

Algorithm of actions when adjusting cables

1. First of all, take the bottom brackets and securely fasten them to the wall. It is very important to secure them firmly, as they hold quite a lot of weight.
2. We install the key of the gate section. This must be done very carefully so as not to damage other parts of the sectional door.
3. After the key is installed, we fix the drum. This is done by tightening the set screw.
4. The next step is to turn the shaft until the sag disappears. This must be done slowly in order to stop in time. Since there is a possibility that you will overtighten the cables. Of course, this will require effort, but the possibility still exists.
5. To achieve complete absence of sagging, you need to wind the springs. Usually, for the cables to take their normal position, it is enough to make only two or three turns.
6. After the springs are adjusted, the bolt tips are tightened; this must be done in order to further secure the springs.

Adjusting the spring of sectional doors allows you to eliminate sagging cables, and, accordingly, premature wear of the mechanism. But, unfortunately, it does not always work. If this is your case, then you need to adjust the cables in a different way.

Loosen the bolts, then rotate the shaft on the side where there is sagging, and the opposite side must be held in its original position. Then you need to tighten the bolts again. This method is good because it always works, no matter whether you are adjusting Dorhan sectional doors or adjusting Alutech sectional doors.

How to adjust sectional doors with a continuous shaft?

This is a fairly simple process, so there is no need to describe a clear step-by-step solution to this problem. The gist is this:

1. You must remove the operating panel, after which you will see the screw that holds the slack cable.
2. Next, you need to loosen it and adjust the length of the cable; since you have some slack, it needs to be reduced.
3. After completing all these steps, you must screw the vit back, while holding the cable in the position you selected, and install the working panel back.
4. After the sectional doors are assembled into standard view you need to conduct a thorough assessment of each of the cables. After all, it may be that while you were tightening the screw, the cable weakened a little. In this case, you will have to repeat the entire procedure from the very beginning.

Using the above methods for adjusting sectional doors, you can always keep them in excellent condition, and only in this case will they serve you for many years without frustrating you with frequent breakdowns. But it is still worth checking the tension of the cables from time to time, because over time it may weaken and then you will need to tighten them again.

A car as a means of transportation has become an indispensable attribute for many residents of megacities. For the duration of its service and appearance a huge impact operating and storage conditions. A garage equipped with a new generation of doors is a reliable haven for a vehicle.

Peculiarities

All in great demand uses products presented by Doorhan. This company produces and manufactures a wide range of gates. It is noteworthy that the panels for such structures are produced directly in Russia, and are not imported from abroad.

Gates are installed by many car owners in their garages. Automatic adjustment, as well as configuration and programming of the key fob allows you to freely enter its storage location without leaving the car.

Distinctive feature The products of this company are reliable and have a long service life. The degree of its protection against unauthorized entry into the garage is very high. The purchase price is quite affordable.

Having installation and welding skills, you can install the gate yourself, without the help of specialists. It is necessary to follow the instructions step by step (it is necessarily included in the package of purchased products) and prepare for scrupulous preparatory work.

Kinds

The Doorhan company produces and sells almost all types of garage doors:

• sectional;
• roller (roller shutter);
• lift-and-swivel;
• mechanical swing and sliding (sliding).

Sectional doors Very practical for the garage. Their thermal insulation is quite high - no lower than that of a 50 cm thick brick wall, they are strong and durable.

This product is produced in various designs. The Doorhan company provides garage doors with a built-in wicket door.

Sectional doors are made from sandwich panels. The thickness of the canvas consists of several layers. The inner layer is filled with foam, which allows you to retain heat. Installation of such structures is possible in garages with small side walls.

Roller (roller shutter) the gate is a set aluminum profiles, which are automatically rolled up into a protective box. It is located at the very top. Due to the fact that the gates are placed vertically, their installation is possible in garages where the adjacent area (entry point) is small or there is a sidewalk nearby.

Your name lift-and-turn The gates were obtained due to the fact that their leaf (a shield with a system of rollers and locks) moves in space from a vertical to a horizontal position, forming an angle of 90 degrees. An electromechanical drive controls the movement process.

Sliding gates made of sandwich panels with a smooth or structured surface. Support beams sliding gates made from hot rolled steel. All steel elements are coated with a thick layer of zinc. This provides protection against corrosion.

The most common gates are swing They open outwards or inwards. They have two doors that are mounted on hinges with bearings on the sides of the opening. In order for the gate to open outwards, it is necessary to have an area in front of the house of 4-5 meters.

The Doorhan company has developed and introduced high-speed rolling gates into production. A convenient point when using them intensively is the speed of the work process. Warmth inside the room is retained thanks to the ability of the gate to quickly open and close. Heat loss at the same time minimal. They are made from transparent polyester. This makes it possible to see the territory from the outside.

Preparation

Before purchasing gates manufactured by Doorhan, it is necessary to conduct a thorough analysis and preparatory work at the installation site.

Often, the adjacent garage area is not enough to install your favorite type of gate. It is necessary to correctly assess the situation (make calculations and measurements of all parameters, clarify what the structure will look like when assembled).

At the beginning of work, you should measure the height of the ceiling (the frame is attached to it) in the garage, as well as the depth of the building. Then they measure how wide the walls are. Then you need to find out what is the distance between top point garage opening and roof (can be no more than 20 cm).

The opening is checked for defects. Cracks and unevenness should be eliminated by covering them with mortar, and then all unevenness should be leveled with plaster. This should be done on both sides of the opening - external and internal. The entire further range of work will depend on the quality of the prepared foundation.

Before you begin installing the gate, you need to carefully check its contents.

The kit includes the following mechanisms: sets of parts for fastening and guide profiles; torsion engine; sandwich panels.

You can install the purchased gate yourself, tighten the cables, and program the automation if you have the following tools:

• tape measure and a set of screwdrivers;
• building level;
• drills with a set of drills and attachments;
• riveting tool;
• hammer;
• wrenches;

• jigsaw;
• knife and pliers;
• grinding machine.
• marker;
• devices for fastening profiles;
• screwdriver and bit for it;
• set of wrenches;
• tool for winding the spring coils.

You must be dressed in overalls, protective gloves and goggles.

All installation welding work, and electrical connections carried out only with serviceable power tools.

Installation

The gate installation algorithm is clearly stated in the instructions of the company that produces them.

Installation of each type is carried out taking into account individual characteristics designs.

Sectional Garage Doors are installed according to the following scheme:

• the verticals of the opening are mounted;
• the load-bearing panels are fastened;
• install balancing springs;
• connect automation;
• handles and bolts are attached (to the gate leaf);
• regulate the tension of lifting cables.

After connecting the electric drive, the quality of the web movement is checked.

Let's take a closer look at the installation. At the very beginning, you will need to prepare and install the frame. When the gate is purchased, it must be removed from its packaging and unfolded to check for availability. Then they put it against the opening vertical racks and make a mark (bait) of the place where they will be located.

The sides of the lower part of the canvas must extend beyond the edge of the garage opening. If the floor in the room is uneven, metal plates are placed under the structure. The panels are installed only horizontally. Vertical profiles are installed along the lower section and the mounting points for the racks are fixed. A distance of 2.5-3 cm must be maintained from the end edge to the guide assembly.

Then racks are attached to both sides of the opening. The horizontal guides are fixed with bolts and corner connecting plates. They are twisted, pressing tightly to the surface. This is how the frame is assembled. Upon completion of this operation, they begin to assemble the sections themselves.

Gate manufacturers have made the assembly process easier. There is no need to mark or drill holes for the mounting panels, since they are already there. Install side supports, hinges and corner brackets (in the bottom panel). The structure is placed on bottom panel, which needs to be adjusted horizontally, and secured with self-tapping screws.

Take the next section. The side holders need to be attached to it and connected to the internal loops. The side supports are placed in the previously made holes. After this, the roller supports, holders and corner brackets are fixed on the top panel. All elements are fastened very tightly to avoid breakage of structures and their loosening. The holes in the section should match the holes at the bottom of the hinges.

The panels are inserted into the opening one after another. Installation begins with the lower section; it is fixed into the guides with its sides. The panel itself should extend beyond the sides of the gate opening equally with its side edges. Rollers are placed on the corner brackets in the roller holders.

Separately, the fixing profiles are assembled in the room and installed in place in a vertical position. The racks are attached to the side parts of the opening. Afterwards, all horizontal and vertical guides are fastened with a special plate. A frame is formed. Periodically check the panel with a level to ensure that it is positioned strictly horizontally.

After attaching the lower section, the middle one is attached, then the upper one. All of them are connected to each other by screwing the loops. At the same time regulated correct work upper rollers, the canvas at the top should fit as tightly as possible to the lintel.

The next step is to attach the support riser to the assembled gate with self-tapping screws.

On both sides of the section there are places for attaching a cable, which is fixed in them. In the future, it is used to operate the torsion mechanism. During operation, you need to install the rollers in the places intended for them. Afterwards the shaft and drum are assembled. The drum is installed on the shaft, and a torsion mechanism (springs) is also placed there.

Next, the upper section is installed. The shaft is fixed into a pre-prepared bearing. The free ends of the cables are secured in the drum. The cable is pulled into a special channel, which is provided by the gate design. The drum is secured with a special bushing.

Next stage work involves adjusting the rear torsion springs. Buffers are installed in the middle of the opening, the crossbar is fixed to ceiling beam using mounting brackets. Further on outside Mark the place where the handle and valve will be attached. Fix them with a screwdriver.

A sleeve is put on the shaft, and a drive is placed on top of the guide and the entire structure is connected together. The bracket and rod are attached to the profile and everything is fastened with self-tapping screws.

The final installation operation is the installation of a guide profile, which should be located above all ceiling profiles. Next to the drive there is a beam with fasteners, on which the second end of the cable is ultimately fixed.

Tensioning the cables is the final stage of the entire work process. After this stage, the gate system, assembled and installed by yourself, is checked for functionality.

Automation of any structure is carried out using a drive and a control unit. The selection of the drive depends on the frequency of their use and the weight of the sashes. The connected automation is controlled using a key fob, programmed remote control, button or switch. The structures can also be equipped with an electric drive with a manual (knob) lifting system.

Sectional doors are automated using chain and shaft drives.

To lift heavy sashes, rollers are used. When the gate opening is low, chain gates are used. They regulate stopping and lifting of the blade. A coded signal device, a built-in receiver, and a radio button make these devices comfortable and very easy to use.

For sliding gates install hydraulic drives. To ensure that the sections move smoothly, special rollers are used. In this case, the foundation must be prepared in advance for roller carriages.

IN swing gates For automation, electric drives are used (connected to each leaf). The automation is located inside the gate, since it opens inward or outward. Each owner will decide for himself which automation to install on his gate.

In the operating instructions, Doorhan gate developers give advice on correct use their products:

Car owners overhead gates It is not recommended to park their cars close to the garage. A gate opening forward can damage the vehicle.

When choosing a design, you should pay attention to the appearance of the canvas. It will be the central component of the entire garage complex.

Pay attention to the garage walls. If they are made of ordinary brick, then there is no need to strengthen them. Walls made of foam blocks and other materials (hollow inside) must be strengthened. Their strength does not allow the gate to be inserted and the force of the torsion bar to be used. In this case, the frame is welded, which is inserted into the garage opening and fixed.

In order for sectional garage doors to serve over a long period of time, it is necessary that the support cables are always in a state of tension. These cables are simply necessary, since with their help all the work of the garage door is carried out. Thanks to the supporting cables, the structure is in balance. If you have sectional garage doors installed, then you must carefully monitor the condition of the support cables, periodically inspect and adjust them. Sagging cables are one of the most common mistakes when operating such garage doors.

Actually, adjusting garage doors is adjusting the cables. If the cables are in order, then in most cases the sectional doors themselves will function normally. Their adjustment is not complex process However, ignorant people may have a lot of questions about this.

Algorithm of actions

Adjustment of the cables is carried out in several stages. It's important to follow step by step instructions so as not to miss anything and damage the structural parts.

1. At the bottom of the structure there are brackets that need to be secured to initial stage works Special keys must be installed on each section of your gate. After this, tighten the drum and setscrew. This preparatory stage adjustments.
2. At the second stage, you need to turn the adjusting shaft until the cable is tensioned. As a rule, it is necessary to make two revolutions to achieve the desired result. Once you complete this process, you need to secure all the bolts to the tension lugs. This way you can fix the spring and the sagging of the cables will disappear.

It happens that the above process does not allow the sectional garage doors to function properly. In this case, you can try turning both shafts at the same time, which will allow you to achieve even tension. Initially, you should loosen both shafts and turn the one that gives the worst result. At this time, it is necessary to monitor the condition of the second shaft (it must be at rest), then both shafts are turned simultaneously and secured.

Features of adjustment of structures with a continuous shaft

It happens that sectional garage doors come with a continuous shaft. In this case, it is necessary to apply a different operating algorithm to adjust the gate.

1. You need to raise the work panel. Lock it in this position. This is necessary to loosen the support cable.
2. Loosen the screw that holds the cable in the drum.
3. Calculate the cable adjustment in such a way as to get rid of its slack. Try to keep the size of the working part of the cable as small as possible.
4. Tighten the cable fixing screw.
5. Return the panel to its original state. Now you need to check if you got rid of the problem. If the result is negative, repeat the operation. Pay attention to whether both cables are tightened equally.

Try not to over-tighten one of the cables. Remember that both cables must be tensioned evenly. This is one of the key conditions correct adjustment garage doors. If you leave the gate in a state where one of the cables is more tense, this will inevitably lead to distortions and deformation.

In the future, you will probably have to deal with adjusting your sectional garage doors again and again. You can use the above instructions again. This way you can significantly extend the life of your sectional garage doors.

Remember that the tension of the cables must be constantly checked from time to time. If you notice that one of them gradually becomes unusable, is greatly stretched and worn out, then you need to replace it, or better yet, both cables at once. This will increase the service life of your sectional doors by at least one and a half times.

Sectional garage door maintenance

Regardless of the type and specific use, garage doors must be inspected and maintained from time to time. It is important to pay attention to the following factors:

1. Corrosion. All iron components of your sectional garage door (including the support cables) are highly susceptible to corrosion due to exposure to moisture. It is important to clean problem areas in a timely manner.
2. Damage. During use, the gate may become damaged, which must be noted by you and corrected in a timely manner.
3. Pollution. Clean the gate from dirt in a timely manner. This way you will not only improve the aesthetic qualities of your gates, but also extend their service life.

Follow these instructions and your sectional garage door will serve you for many years.